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Electronic structure of an atom: MCQ4

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Questions and Answers

What colour flame does copper produce in a flame test?

red

yellow

lilac

blue/green (correct)

What is the principle that states that electrons occupy the lowest sublevel available?

Bohr's Theory

Aufbau Principle (correct)

Heisenberg Uncertainty Principle

Pauli's Exclusion Principle

What is the region around the nucleus where the probability of finding an electron is relatively high?

Energy Sublevel

Energy Level

Nuclear Shell

Atomic Orbital (correct)

What is the limitation of the Bohr theory that deals with the wavelike properties of electrons?

Did not take account of the fact that electrons have the properties of waves as well as particles Signup and view all the answers

What is the principle that states that it is not possible to determine the exact position and velocity of an electron at the same time?

Heisenberg Uncertainty Principle Signup and view all the answers

What is the group of atomic orbitals all of the same energy?

Energy Sublevel Signup and view all the answers

Why did the Bohr theory not explain the discovery of sublevels?

It did not account for the existence of orbitals Signup and view all the answers

What is the value of 'n' in energy levels?

n = 1, 2, 3, 4 Signup and view all the answers

What is the primary purpose of an atomic absorption spectrometer?

To measure the presence and amount of an element Signup and view all the answers

What is the difference between the energy levels E2 and E1 in the Bohr model of the hydrogen atom?

The energy emitted in the form of light Signup and view all the answers

Which of the following is NOT a way to energize an atom?

Supplying sound Signup and view all the answers

What is the name of the series of lines in the spectrum of hydrogen when an electron falls back to n=2?

Balmer series Signup and view all the answers

What is the purpose of a flame test in the study of atomic structure?

To identify the presence of a particular gas Signup and view all the answers

What is the name of the instrument used to show the characteristic line spectrum of an element?

Spectroscope Signup and view all the answers

What is the relationship between the energy levels of an electron in an atom, according to Niels Bohr?

The energy of the electron is restricted to certain energy values Signup and view all the answers